| Company name | Reg. code |
|---|---|
| TTN OÜ | 16409671 |
| TTN EESTI OÜ | 14038986 |
| TTN BUSINESS TRAVEL MANAGEMENT INTERNATIONAL OÜ (former name Bookandtrip International OÜ) | 14087743 |
| TTNE GLOBAL OÜ | 16929672 |
| TAN & TON OÜ kustutatud | 12469446 |
| TAN-TAN OÜ | 16902561 |
| TKN OÜ | 17062838 |
| 50TON OÜ | 14808088 |
| TNN OÜ | 14204924 |
| TTI OÜ | 11481971 |
| TEN OÜ | 10286084 |
| TTG OÜ | 10129516 |
| TTM OÜ | 14480110 |
| TFN OÜ | 17049008 |
| KTN OÜ | 14560240 |
| ETN OÜ kustutatud | 12239870 |
| TLN7 OÜ | 16894620 |
| BTN OÜ | 16319608 |
| TON24 OÜ | 16113172 |
| TPN OÜ | 14513714 |
| HTN OÜ kustutatud | 12742112 |
| TTJ OÜ | 16098403 |
| SHUANG TAN OÜ | 16815721 |
| TTI OPERATIONS OÜ | 12112767 |
| TIN KOOLITUSED OÜ kustutatud | 12961325 |
| 1MTN KE OÜ (former name 1MTN Kenya OÜ) | 16741980 |
| TNT CONSULTING OÜ kustutatud | 14398360 |
| TIN-SKRIT OÜ kustutatud | 10166983 |
| TLN BETOON OÜ | 14504483 |
| MTN HOLDING OÜ | 16031407 |
| TTK ASSETS OÜ | 16574453 |
| GOLDWAY TLN OÜ | 16897742 |
| TMN COACHING OÜ | 16551141 |
| TEN X OÜ | 17158354 |
| KTN CONSULT OÜ | 14839060 |
| TAN SILLIKSAAR OÜ kustutatud | 10039517 |
| BTN TOOLS OÜ | 12946633 |
| TEN-TEAM OÜ | 10539929 |
| TNT INVESTEERINGUD OÜ | 12705527 |
| NTN EST OÜ (former name NTN EST Aktsiaselts) | 10021782 |
| UPGRADE.TLN OÜ | 16930735 |
| STN GRUPP OÜ | 14757333 |
| TON MÄRTS OÜ | 11480581 |
| SII TLN OÜ | 17379377 |
| SMARTKONTEINER TLN OÜ | 16063416 |
| TTE MEISTER OÜ kustutatud | 12851364 |
| WFC TLN OÜ kustutatud | 12699399 |
| PATROON TTM OÜ | 11244975 |
| TTG.SCANBALT OÜ | 11460288 |
| TTO AVIATION OÜ | 14274008 |